US3787174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diphenylamines for dyeing keratinous fibers
Assignee: L'Oréal SA
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Filing: 1972-07-11
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Granted: 1974-01-22
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Expires: 1992-07-11
Abstract
Abstract Diphenylamines of the formula WHEREIN R1 and R2 each independently represent hydrogen, halogen or lower alkyl containing one to four carbon atoms with at least one of R1 and R2 being other than hydrogen; R3, R4, R5, R6, and R7 each independently represent hydrogen, methoxy, or lower alkyl optionally substituted with hydroxy, carbamyl, piperidinyl or acylamino; R3 and R6 or R4 and R7 also optionally forming together with the carbon and nitrogen atoms to which they are attached, a dihydrooxazine or pyrroline heterocycle; and Z represents amino, acylamino or hydroxy; and the acid salts of said diphenylamines. These diphenylamines are usefully employed in cosmetic compositions for the hair including hair dye compositions and hair setting lotion compositions.
Inventors
- 👤 G Kalopissis
- 👤 A Bugaut
- 👤 F Estradier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:24
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/28; C07C275/40; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/413; A61Q; A61Q5/00; A61Q5/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
12 words
The composition of claim 1 wherein said diphenylamine is 4-hydroxy-3,5,3'',5''-tetramethyl-2'', 4''-diamino diphenylamine.
Claim 2
Dependent Claim
20 words
The composition of claim 1 wherein said diphenylamine is present in amounts of 0.002-2 percent by weight of said composition.
Claim 3
Dependent Claim
12 words
The composition of claim 1 having a pH between 4 and 11.
Claim 4
Dependent Claim
33 words
The composition of claim 1 which also includes a dye selected from the group consisting of ortho- and para-phenylenediamines, ortho- and paraaminophenols, other leuco derivatives of indoanilines, indamines or indophenols, and direct dyes.
Claim 5
Dependent Claim
20 words
The composition of claim 1 wherein said alcohol is a glycol in amounts of 1 to 6 percent by weight.
Claim 6
Dependent Claim
18 words
The composition of claim 6 wherein said glycol is selected from the group consisting of propyleneglycol and butylglycol.
Claim 7
Dependent Claim
23 words
The composition of claim 1 wherein said alcohol is a low molecular weight alcohol in amounts of 20 to 70 percent by weight.
Claim 8
Dependent Claim
21 words
The composition of claim 8 wherein said low molecular weight alcohol is selected from the group consisting of ethanol and isopropanol.
Claim 9
Dependent Claim
20 words
The composition of claim 1 wherein said solvent is an aqueous alcohol solution and which also includes a cosmetic resin.
Claim 10
Dependent Claim
36 words
The composition of claim 10 wherein said cosmetic resin is selected from the group consisting of polyvinylpyrrolidone, copolymer of crotonic acid-vinyl acetate, copolymer of vinylpyrrolidone and vinyl acetate and copolymer of maleic anhydride and butylvinyl ether.
Claim 11
Dependent Claim
20 words
The composition of claim 10 wherein said cosmetic resin is present in amounts of 1 to 3 percent by weight.
Claim 12
Dependent Claim
43 words
A process of dyeing keratinous fibers comprising impregnating said fibers with the composition of claim 1, permitting said composition to remain in contact with said fibers for a time ranging from about 10 to 30 minutes, rinsing said fibers and drying said fibers.
Claim 13
Dependent Claim
30 words
A process for treating human hair comprising applying to hair previously washed and rinsed, a composition defined in claim 10, rolling said hair up on curlers and drying said hair.
Claim 14
Dependent Claim
37 words
The process of claim 13, comprising adding to the composition before its application, either hydrogen peroxide in an amount of 4 to 12 percent in weight or an equivalent quantity of another oxidizing agent, of said composition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |